The 2 USDA planting zones in New Haven, Connecticut are 6b and 7a, as per latest USDA data. The 2 planting zones in New Haven are listed below.
- Zone 6b (-5°F to 0°F / -20.6°C to -17.8°C)– This cooler zone includes neighborhoods like Bethany, Hamden, Meriden, North Haven, Quinnipiac, Upper State Street, Wallingford, and Woodbridge.
- Zone 7a (0°F to 5°F / -17.8°C to -15°C)– Covering over 40 neighborhoods, this zone includes Amity, Annex, Downtown New Haven, East Rock, Westville, Wooster Square, Fair Haven, and West Haven.
To verify your New Haven, Connecticut, USDA zone use our three tools given below, zipcode to planting zone search tool, interactive map, or planting zone table.
New Haven Planting Zones by ZipCode
Enter New Haven 5 digit Zipcode to find its USDA Planting Zone.
New Haven Planting Zones Map
Select or type your New Haven location in the search box below to find its USDA Growing Zone.
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New Haven Area Planting Zone
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New Haven Planting Zones Table
Following table lists all the New Haven locations with their USDA Hardiness Zones.
| New Haven Location | Planting Zone |
|---|---|
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New Haven USDA Growing Zone
The 2 USDA planting zones in New Haven, Connecticut are 6b and 7a.
Zone 6b
Zone 6b (-5°F to 0°F / -20.6°C to -17.8°C) includes neighborhoods like Bethany, Hamden and Meriden. These areas experience winter lows between -5°F and 0°F (-20.6°C to -17.8°C), and supports hardy vegetation like Thyme (Thymus vulgaris) and Sage (Salvia officinalis) for culinary herbs, along with drought-resistant ornamental plants like Winterberry Holly (Ilex verticillata) and Mountain Laurel (Kalmia latifolia).
Zone 7a
Zone 7a (0°F to 5°F / -17.8°C to -15°C) covers over 40 neighborhoods in New Haven, like Amity, Downtown New Haven, East Rock and Westville.
With milder winters ranging from 0°F to 5°F (-17.8°C to -15°C), this zone supports heat-loving vegetables like Artichoke (Cynara cardunculus var. scolymus) and Elberta Peach (Prunus persica ‘Elberta’), as well as ornamental plants like Pinxterbloom Azalea (Rhododendron periclymenoides) and Swamp Azalea (Rhododendron viscosum).